Some OCD cleanups on some of the perl@ ports.
- Remove dependencies in core
- Put testing depends in TEST_DEPENDS
- Remove unnecessary bsd.port.options.mk inclusions
- Remove checks for Perl versions that no longer exist in the ports tree
- Sort plists, some of which were so jumbled that I have to assume
the plist was randomized before committing
A lot of the plist changes in this commit are moving PERL5_MAN3 after
SITE_PERL. It's repo churn now, but it makes updating the ports later
far easier.

Change the way Perl modules are installed, update the default Perl to 5.18.
Before, we had:
site_perl : lib/perl5/site_perl/5.18
site_perl/perl_arch : lib/perl5/site_perl/5.18/mach
perl_man3 : lib/perl5/5.18/man/man3
Now we have:
site_perl : lib/perl5/site_perl
site_arch : lib/perl5/site_perl/mach/5.18
perl_man3 : lib/perl5/site_perl/man/man3
Modules without any .so will be installed at the same place regardless of the

At the moment 1385 ports use BUILD_DEPENDS= ${RUN_DEPENDS} and 450
ports use BUILD_DEPENDS:= ${RUN_DEPENDS}. This patch fixes ports that are
currently broken. This is a temporary measure until we organically stop using
:= or someone(s) spend a lot of time changing all the ports over.
Explicit duplication > := > = and this just moves ports one step to the left
Approved by: portmgr

ExtUtils::AutoInstall lets module writers to specify a more
sophisticated form of dependency information than the PREREQ_PM
option offered by ExtUtils::MakeMaker.
This module works best with the Module::Install framework,
a drop-in replacement for MakeMaker.
WWW: http://search.cpan.org/dist/ExtUtils-AutoInstall/
PR: ports/89855
Submitted by: Lars Balker Rasmussen <lars@balker.dk>